import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'
import qs from 'qs'

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests

  transformRequest: [function (data) {
    data = qs.stringify(data);
    return data;
  }],

  headers: {
    'Content-Type': 'application/x-www-form-urlencoded'
  },

  timeout: 5000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  config => {

    // do something before request is sent
    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation    
      config.headers['Access-Token'] = getToken()
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data
    //SWOOLE加密后的错误提示会说字符串类型，如有其它情况，自行判断
    if (typeof res === 'string') {
      if (res.indexOf('SWOOLEC') !== -1) {
        Message({
          message: '授权检测失败，请联系授权提供商。',
          type: 'error',
          duration: 5 * 1000
        });
      }
      return res;
    } else {
      // if the custom code is not 20000, it is judged as an error.
      if (res.status !== 200 ) {

        if(res.status === 204){
          return res;
        }

        Message({
          message: res.message || 'Error',
          type: 'error',
          duration: 5 * 1000
        })



        // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
        if (res.status === 508 || res.status === 512 || res.status === 514 || res.status === 1001) {
          // to re-login
          MessageBox.confirm('您的登录可能过期，需要重新登录', '重新登陆', {
            confirmButtonText: '重新登录',
            cancelButtonText: '取消',
            type: 'warning'
          }).then(() => {
            store.dispatch('user/resetToken').then(() => {
              location.reload()
            })
          })
        }
        return Promise.reject(new Error(res.message || 'Error'))
      } else {
        return res
      }
    }


  },
  error => {
    console.log('err' + error) // for debug
    Message({
      message: '服务器出错啦',//+error.message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service
